Senior developer
Product engineer
Product engineer

The team you’ve been looking for to deliver ambitious projects

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Services

What we build and support

A small senior team covering the full product: mobile, web, backend and APIs.

Mobile App Development

Android and iOS applications — a new product or the improvement of an existing app.

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Web Application Development

Business platforms, dashboards, admin tools, SaaS products and responsive interfaces.

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Backend & API Development

Scalable backends, REST APIs, databases, authentication and third-party integrations.

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Existing Project Support

Bug fixes, code take-over, maintenance, performance work and new features on an existing product.

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Long-Term Technical Partnership

Ongoing engineering support for startups, SMEs, agencies and product teams that are not hiring in-house yet.

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Why Olala

Why clients work with us

A small, experienced team — not a large generalist agency.

Senior Experience

Projects guided by 12 years of engineering experience.

Direct Communication

Clients work directly with the engineers building the product.

Complete Technical Coverage

Mobile, frontend, backend and APIs in one team.

Transparent Delivery

Clear milestones, demos and regular progress updates.

Projects

Selected work

A selection of digital products designed to simplify operations, enrich the user experience, and support growth.

Yespark

Design, evolution, and modernisation of Yespark’s iOS and Android application for finding, booking, and accessing parking spaces.

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LimoGroup

An online limousine-booking platform with a back office for fleet, driver, and reservation management.

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Medical Practice Management

Web software for managing patients, medical records, appointments, and billing from one interface.

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Zapink

Development of a complete business solution connecting an Android application with Amazon and Zoho. The application supports teams during product reception and quality control, while Zapink centralizes data, automates processes, and manages orders, payments, and refunds.

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Société Générale Mobile App Redesign

Contributed to the redesign of the Société Générale mobile application for Android and iOS, including Security Pass, biometric authentication, transfers, and Paylib, using an architecture combining React Native and native development.

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Secure Authentication SDK

Development of a secure Android and iOS authentication SDK integrating OAuth 2.0, PKCE, biometrics, Face ID, and passwordless authentication, supported by demo applications, technical documentation, and a continuous integration process.

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Testimonials

What clients say

What founders and operators say about working with us.

J'ai eu le plaisir de manager Sadok chez Yespark, et c'est sans hésitation que je le recommande. Dans l'environnement exigeant d'une startup tech, Sadok s'est distingué par sa fiabilité remarquable : quand il s'engage sur un livrable ou un délai, on peut compter sur lui les yeux fermés. Sa rigueur dans le travail se traduit par une qualité constante, même sous pression.

Guillaume Wrobel, Co-Founder & CTO at Yespark Group

Clear communication, strong technical execution and a reliable long-term partner. They understand our business and deliver quality work.

Founder

Je suis vraiment content du site qu’il a créé pour mon activité de location de limousine. Il a pris le temps de comprendre ce dont j’avais besoin et le résultat correspond parfaitement à ce que je voulais. Le site est simple, professionnel et mes clients peuvent facilement voir mes services et me contacter. Merci pour le bon travail !

Seif Hambli, Goat Limo
Contact

Tell us about your project

Share a few details. We reply within one business day, and you talk to the engineers who would do the work.